See what I mean about that 45 degree notch? There is no correcsponding plate in the nosewheel bay to cover it when retracted. (I know Kerry has one in his plans...).
Just one of those why? and how? mysteries.

That geometry of the front nose gear door is pretty complex with offset hinges and angles. Would it work if you used offset door hinges at the front so that it looks scale when the gear is down, and used spring pressure to close it - ie no struts at the rear of the door- the nose gear would push it open, and allow it ot close when retracted, Kingcat style....just a thought.